Multi-cavity intelligent fragrance system based on emotion recognition and control method thereof

Abstract

The application discloses a multi-cavity intelligent fragrance system based on emotion recognition and a control method thereof, and belongs to the technical field of smart home. The system comprises a base, a capsule bin, a fixed top cover, a flow guide structure, a plurality of fragrance oil consumable capsules, an emotion acquisition module and a control unit. The capsule bin is provided with a plurality of capsule accommodating cavities, and each cavity is provided with an independent heating element and a physical foolproof structure at the bottom. The top cover is internally provided with a flow guide structure, including a plurality of independent flow guide channels, each channel is in sealed communication with the top of the corresponding capsule cavity, and converges to the fragrance outlet at the center of the top cover. The bottom of the capsule is provided with a foolproof groove and a fragrance type identification part (color ring or NFC tag). The control unit matches the target fragrance type according to the user emotion obtained by the emotion acquisition module, starts the heating element of the corresponding capsule cavity, and the fragrance is released from the fragrance outlet through the flow guide channel. The application does not need rotating parts, has a simple and reliable structure, supports composite fragrance type release, and can be widely applied to home, office and other scenes.

Description

Technical Field

[0001] This invention relates to the field of smart home and fragrance technology, specifically to a fragrance system that automatically switches between multiple fragrances through AI emotion recognition, and more particularly to a multi-cavity smart fragrance device with a fixed flow guide top cover and its control method. Background Technology

[0002] With the improvement of living standards, people's demand for emotional management and quality of life is increasing. Aromatherapy, as a traditional method of emotional regulation, is widely used in homes, offices, and other settings. However, existing aromatherapy devices have the following technical shortcomings: Limited fragrance options and inconvenient switching: Traditional aroma diffusers are mostly single-fragrance models. Changing the fragrance requires manual cleaning or replacement of consumables, which is cumbersome and cannot meet users' dynamic needs for multiple fragrances under different moods. Lack of intelligent interaction: Most existing devices are manually controlled or simply timed on / off, unable to sense the user's emotions and automatically match the most suitable fragrance, making it difficult to achieve truly personalized emotional companionship. Consumable identification methods are complex or costly: Some high-end devices use electronic tag identification, which is expensive; low-end devices have no identification function, and users need to record manually, which is prone to errors. Temperature control is not matched with fragrance: Different fragrance essential oils require different heating temperatures to achieve the best volatilization effect. Existing equipment is mostly a single fixed temperature or simple high and low speed adjustment, which cannot provide matching heating temperatures for different fragrances. The need for simultaneous use of multiple fragrances is not being met: users may need multiple fragrances in combination in specific scenarios (such as focus + alertness), and existing devices cannot release more than two fragrances at the same time. Reliability issues of mechanical rotating structures: Most existing fragrance-switching devices use rotating switching mechanisms, which suffer from mechanical wear, noise, positioning deviation, and other problems, leading to a decline in reliability over long-term use. Therefore, developing a fragrance system that can intelligently recognize user emotions, automatically switch between multiple fragrances, and has a simple and reliable structure has significant market value. Summary of the Invention

[0003] I. Technical problems to be solved This invention aims to solve the aforementioned problems in the prior art and provides a multi-cavity intelligent fragrance system based on emotion recognition, with the following specific objectives: Enables automatic fragrance matching and switching based on user emotions; A multi-cavity capsule compartment structure is provided, which can be pre-filled with various flavored capsules without the need for manual replacement; The fixed top cover guide structure eliminates the need for mechanical rotating parts, thus improving reliability. Multiple capsule recognition methods are available to suit different cost requirements: the basic version uses color vision + physical error prevention, while the advanced version uses NFC electronic recognition. It offers flexible temperature control options, supporting fixed temperature (basic version) or variable temperature (advanced version). It supports simultaneous heating of multiple chambers to achieve the release of complex aromas; Independent flow channels and silicone seals prevent aroma from mixing with other flavors. II. Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A multi-cavity intelligent fragrance system based on emotion recognition, characterized in that it includes: The housing assembly includes a base (100), a capsule compartment (200) fixed above the base, and a top cover (300) fixed above the capsule compartment; the top cover has an aroma outlet (301) at its center. The capsule compartment has multiple capsule receiving cavities (201) distributed along the circumference, each capsule receiving cavity is used to hold one sesame oil consumable capsule (400); each capsule receiving cavity (201) has an independently controlled heating element (202) at the bottom; each capsule receiving cavity also has a physical foolproof structure (203) at the bottom. The flow guiding structure is located inside the top cover and includes multiple independent flow guiding channels (302). One end of each flow guiding channel is sealed and connected to the top opening of a corresponding capsule receiving cavity (201), and the other end converges to the fragrance outlet (301). Multiple sesame oil consumable capsules, each capsule having a foolproof groove (403) at the bottom that matches the physical foolproof structure, and an identification part (404) for identifying fragrance information. The emotion acquisition module is used to acquire user emotion-related data, including at least one of voice input, facial images, and physiological signals; The control unit (101) is electrically connected to the heating element (202) and the emotion acquisition module (103), respectively. The control unit (101) includes a processor and a memory. The memory stores a computer program. When the processor executes the computer program, it performs the following steps: The emotion acquisition module obtains the user's emotion data. Based on the emotion data, the user's current emotion type is determined by a pre-trained emotion recognition model; Based on the current emotion type, query the pre-stored fragrance-emotion mapping database to determine the matching target fragrance type; Based on the target fragrance, determine the corresponding target capsule cavity (201). The heating element (202) at the bottom of the target capsule cavity (201) is activated to heat the capsule and release aroma with preset heating parameters; The aroma is released from the aroma outlet (301) through the corresponding airflow channel (302). Furthermore, the flow guiding structure includes: The lower surface of the top cover is provided with annular sealing grooves (303) in the same number as the capsule receiving cavity (201), and each annular sealing groove is aligned with the top opening of the corresponding capsule receiving cavity; Each annular sealing groove is embedded with a silicone sealing ring (304) to form an airtight connection with the top of the capsule receiving cavity; The top cover has an air guide channel (302) that is connected to the annular sealing groove. All the air guide channels converge in the central area of ​​the top cover and are connected to the fragrance outlet (301). Furthermore, the air guide channel (302) is an inclined channel that extends obliquely upward from the annular sealing groove (303) toward the center to reduce airflow resistance. Furthermore, the top cover is also equipped with a removable cleaning cover for cleaning the flow channel. Furthermore, the marking part is a color ring (404) set at the bottom of the capsule, and the color of the color ring corresponds one-to-one with the fragrance inside the capsule; the user puts the capsule into the capsule receiving cavity of the corresponding color according to the color. Furthermore, the identification part (406) is an NFC tag set at the bottom of the capsule, and each capsule cavity is provided with an NFC read / write module (205) at the bottom for reading the fragrance information and recommended heating parameters stored in the NFC tag; the control unit (101) determines the target capsule and heating parameters based on the read information. Furthermore, the heating elements (202) at the bottom of the plurality of capsule receiving cavities (201) are configured with fixed different temperature values, and the temperature values ​​are arranged in a preset order along the circumferential direction. Each capsule receiving cavity has a color mark corresponding to the temperature value. The user places the capsule into the capsule receiving cavity of the corresponding color according to the color ring at the bottom of the capsule. Furthermore, the heating element (202) is a PTC heating element, and the control unit adjusts the heating power through a PID algorithm to maintain the heating temperature within the set value ±1℃ range. Furthermore, the physical anti-mistake structure includes a positioning protrusion (203) disposed at the bottom of each capsule receiving cavity (201) and an anti-mistake groove (403) disposed at the bottom of each capsule; the positioning protrusions of different capsule receiving cavities have different shapes and match the shapes of the anti-mistake grooves at the bottom of the corresponding capsules one by one, ensuring that the user can only put the capsule into the capsule receiving cavity corresponding to the color. Furthermore, the shapes of the positioning protrusions (203) and the anti-foolproof grooves (403) are selected from one of the following: triangle, square, pentagon, hexagon, circle, ellipse, star, and heart, and the shapes of the positioning protrusions of the eight capsule receiving cavities are different from each other. Furthermore, the capsule contains eight cavities, evenly distributed along the circumference; the fixed temperature values ​​of the eight heating elements are 40℃, 42℃, 45℃, 48℃, 50℃, 52℃, 55℃, and 58℃, respectively, and are arranged in a clockwise or counterclockwise order; each capsule cavity has a color-coded ring on its edge corresponding to the temperature value of that cavity. Furthermore, the control unit is also configured to: when it is necessary to release a compound fragrance, simultaneously activate the heating elements of multiple target capsule cavities, so that multiple fragrances converge through their respective guide channels to the fragrance outlet for mixing and release. Furthermore, the emotion acquisition module (103) includes a microphone array (104) for acquiring the user's voice commands and voice emotion features; the control unit determines the user's emotion through voice recognition and emotion analysis. Furthermore, the system also includes a communication module for connecting to external health monitoring devices to acquire the user's heart rate and sleep data, and to assist in emotion recognition. Furthermore, the system also includes LED indicator lights (206) connected to the control unit, with one LED indicator light corresponding to each capsule cavity to indicate the currently active capsule cavity. Furthermore, the control unit is also configured to record the cumulative heating time of each capsule, and when the cumulative heating time exceeds a preset threshold, issue a replacement prompt via voice or indicator light. III. Beneficial Effects Compared with the prior art, the present invention has the following beneficial effects: Simplified structure and improved reliability: The fixed top cover and flow guide structure completely eliminate rotating mechanical parts, thus eliminating mechanical wear, noise and positioning deviation problems, and greatly improving long-term reliability. Independent airflow to prevent cross-contamination: Each capsule cavity has an independent silicone-sealed airflow channel to ensure that the aromas do not mix before reaching the aroma outlet. They are only mixed in the mixing chamber when a complex aroma is needed, ensuring precise control. Intelligent emotional companionship: Automatically matches fragrances through AI emotion recognition to achieve a truly personalized fragrance experience. Pre-filled with multiple fragrances and automatic switching: The eight-capsule compartment design can be pre-filled with eight different fragrances. The control unit automatically activates the heating of the corresponding compartment according to the mood, without the need for manual operation. Flexible identification methods: Basic version: It adopts a color ring + physical foolproof method, and users manually match colors, which is extremely low cost; Advanced version: Employs NFC electronic identification for fully automatic recognition; Both types of capsules are interchangeable, forming a complete product matrix. Precise temperature matching: The basic version has a fixed temperature to ensure that each fragrance evaporates at the optimal temperature; the advanced version has variable temperature control to support different concentrations of the same capsule. Complex Fragrance Function: Supports simultaneous heating of multiple chambers to achieve mixed release of various fragrances, satisfying complex emotional needs. Triple error prevention measures: color visual guidance, shape matching error prevention, and seat detection to prevent capsules from being placed incorrectly. Attached Figure Description

[0004] Figure 1 This is a schematic diagram of the overall structure of the intelligent fragrance system according to an embodiment of the present invention. Figure 2 This is a top view of the capsule compartment of the present invention, showing the distribution of the eight capsule-containing cavities, temperature markings, and color markings. Figure 3 This is a schematic diagram of the bottom structure of the sesame oil consumable capsule of the present invention, showing the color ring, the foolproof groove, and the NFC tag mounting slot. Figure 4 This is a side sectional view of the internal flow guiding structure of the top cover of the present invention. Figure 5 This is a bottom view of the top cover of the present invention, showing the annular sealing groove and the silicone sealing ring. Figure 6 This is a hardware block diagram of the control unit of the present invention. Figure 7 This is a flowchart of the emotion recognition and fragrance matching process of the present invention. Figure 8 This is a schematic diagram comparing the capsule recognition methods of the basic and advanced versions of this invention. Figure 9 This is a partially enlarged schematic diagram of the physical error-proof structure of the present invention. Detailed Implementation

[0005] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Example 1: Basic version of intelligent fragrance system (color recognition + fixed temperature, fixed top cover airflow structure) 1.1 System Structure like Figure 1 As shown, this embodiment provides a color recognition-based intelligent fragrance system, including: a base 100, a capsule compartment 200 fixed above the base 100, and a top cover 300 fixedly disposed above the capsule compartment 200. The base 100 houses the control unit, power module, and microphone array. The capsule chamber 200 is disc-shaped, with eight capsule receiving cavities 201 evenly distributed along its circumference. Each capsule receiving cavity 201 has an independent heating element 202 at its bottom. Each capsule receiving cavity 201 also has two asymmetrical positioning protrusions 203 at its bottom (e.g., ...). Figure 2 , Figure 9 (As shown). The upper surface of the capsule chamber 200 has a color-coded ring 204 at the opening of each capsule receiving cavity 201, corresponding to eight colors: red, orange, yellow, green, cyan, blue, purple, and pink. The bottom heating element 202 of each capsule receiving cavity 201 is configured with fixed different temperatures, corresponding to the colors: red 40℃, orange 42℃, yellow 45℃, green 48℃, cyan 50℃, blue 52℃, purple 55℃, and pink 58℃. The heating element 202 uses a PTC heating plate, and its Curie temperature point is selected to ensure a stable operating temperature at the above values. The top cover 300 is fixed above the capsule chamber 200, and its center has an aroma outlet 301. For example... Figure 4 , Figure 5 As shown, the top cover 300 has an internal flow guiding structure. Specifically, the lower surface of the top cover 300 has eight annular sealing grooves 303, each aligned with the top opening of the corresponding capsule receiving cavity 201. Each annular sealing groove 303 is embedded with a silicone sealing ring 304. When the top cover 300 is fixedly installed, the silicone sealing ring 304 presses against the top edge of the capsule receiving cavity 201, forming an airtight connection. The top cover 300 also has eight flow guiding channels 302. One end of each flow guiding channel 302 connects to the annular sealing groove 303, and the other end extends obliquely upwards to the center area of ​​the top cover, converging to form a mixing chamber 305, which connects to the fragrance outlet 301. The flow guiding channels 302 are designed at an angle to reduce airflow resistance. The top of the top cover 300 may also have a removable cleaning cover (not shown in the figure) for easy cleaning of the flow guiding channels. The structure of sesame oil consumable capsule 400 is as follows: Figure 3As shown. The capsule shell 401 is made of heat-resistant food-grade plastic, and the top is sealed with an aluminum foil sealing film 402. The interior contains an adsorbent carrier (such as cellulose fiber felt) impregnated with plant essential oils and powder mixed with the microencapsulated essential oils. The bottom of the capsule has an asymmetrical anti-misplacement groove 403, the shape and position of which matches the positioning protrusion 203 at the bottom of the capsule cavity. The shape of the anti-misplacement groove for each capsule corresponds to the capsule cavity of a specific color—for example, the anti-misplacement groove for a red capsule is triangular, matching the triangular protrusion of the red cavity; the anti-misplacement groove for an orange capsule is square, matching the square protrusion of the orange cavity, and so on. The bottom of the capsule also has a color ring 404, the color of which matches the color of the temperature chamber to which the capsule is adapted (for example, a capsule adapted to a red 40°C temperature chamber has a red color ring). An NFC tag mounting slot 405 is reserved in the center of the bottom of the capsule; however, no NFC tag is installed in this embodiment, and it is only a structural provision. 1.2 Control Unit The control unit uses an ESP32-S3 chip and has built-in Wi-Fi and Bluetooth modules, connecting to a microphone array, heating element, and LED indicator. 1.3 Usage Process Initial setup phase: Users purchase a set of 8 capsules, each capsule has a color ring (404) on the bottom. Each capsule cavity on the capsule compartment has a corresponding color-coded ring 204 on its edge. Users place the capsules into the corresponding colored capsule chambers. Since the shape of the positioning protrusion in each capsule chamber corresponds one-to-one with the anti-misplacement groove on the bottom of the capsule, if the user attempts to place the capsule into the wrong colored chamber, the capsule will not be able to sit completely, thus providing a physical anti-misplacement function. The control unit can record whether each chamber contains a capsule by detecting the resistance of the heating circuit or by simple manual confirmation. Emotion recognition stage: A microphone array captures user speech, and offline speech recognition and emotion analysis algorithms are used to determine the user's emotion. The pre-stored fragrance-emotion mapping database is as follows: Emotion Types Recommended fragrance Corresponding capsule color Corresponding temperature Fatigue / Relaxation Needs Tranquil Forest orange color 42℃ Mild anxiety Cloud Shelter yellow 45℃ Moderate anxiety Cloud-based shelter (high-efficiency) green 48℃ Need to focus Flow state blue 50℃ Deep work Flow state (high potency) blue 52℃ Morning wake-up Dawn Light Purple 55℃ meditation Awareness pink 58℃ Extremely tired / before bed Tranquil Forest (Gentle) red 40℃ Switching to the execution phase: When the user says "I'm so tired," the control unit recognizes this as a "fatigued" emotion and retrieves the recommended fragrance "Tranquil Forest," corresponding to the orange capsule slot (42℃). The control unit activates the heating element at the bottom of the orange slot, heating the capsule to release the aroma. The aroma escapes from the top of the capsule, enters the corresponding annular sealing slot 303, flows through the guide air passage 302 into the mixing chamber 305, and is finally released from the aroma outlet 301. Simultaneously, the corresponding LED indicator for the orange slot illuminates. Complex Fragrance Release: If the user needs a complex fragrance (for example, to focus and refresh when tired at work), the AI ​​can decide to use "Flow State" and "Dawn Light" simultaneously. The control unit simultaneously activates the heating elements of the cyan and purple tanks, and the two fragrances converge into the mixing chamber 305 through their respective guide channels. After mixing, they are released from the fragrance outlet 301 to achieve a complex fragrance experience. Consumables Management: The control unit records the cumulative heating time of each capsule and prompts the capsule to be replaced via voice when the preset threshold is exceeded. 1.4 Multiple physical safeguards against mistaken identity This embodiment ensures that users place the capsule correctly through a triple mechanism: color visual guidance, shape matching to prevent mistakes, and seat detection. Example 2: Advanced Smart Fragrance System (NFC Recognition + Variable Temperature) 2.1 System Structure This embodiment is basically the same as Embodiment 1, except that: An NFC tag 406 is installed at the bottom of the capsule, which stores information such as the capsule's flavor code and recommended heating temperature range. Each capsule cavity has an NFC read / write module 206 at the bottom for reading capsule NFC tag information. The heating element 202 supports PID adjustable temperature control with a temperature range of 40-60℃ and an accuracy of ±1℃. The capsule compartment has no color-coded rings, so users can place capsules anywhere they like. 2.2 Control Logic After the user places the capsule into the capsule slot, the control unit polls all eight slots via the NFC reader / writer module, reads the information of each capsule, and establishes a "slot-fragrance-recommended temperature" mapping table. After emotion recognition, the system directly determines the target slot based on the fragrance and starts heating. The release of the compound fragrance and temperature regulation are the same as in Example 1.

[0006] Industrial applicability This invention features a simple and reliable structure with no moving parts, significantly reducing the failure rate. The basic version is extremely low-cost and suitable for the mass market, while the advanced version offers powerful functionality and is suitable for the high-end market. The capsule consumables are universal, allowing for a complete product matrix. This system can be widely applied in homes, offices, hotels, and therapeutic spaces.

Claims

1. A multi-cavity intelligent fragrance system based on emotion recognition and its control method, characterized in that, include: The housing assembly includes a base (100), a capsule compartment (200) fixed above the base, and a top cover (300) fixed above the capsule compartment; the top cover has an aroma outlet (301) at its center. The capsule compartment (200) has multiple capsule receiving cavities (201) distributed along the circumference, each capsule receiving cavity is used to hold one sesame oil consumable capsule (400); each capsule receiving cavity has an independently controlled heating element (202) at the bottom; each capsule receiving cavity also has a physical foolproof structure (203) at the bottom. The flow guiding structure (302) is located inside the top cover (300) and includes multiple independent flow guiding channels. One end of each flow guiding channel is sealed and connected to the top opening of a corresponding capsule receiving cavity (201), and the other end converges to the fragrance outlet (301). Multiple sesame oil consumable capsules, each capsule having a foolproof groove (403) at the bottom that matches the physical foolproof structure (203), and an identification part (404) (406) for identifying fragrance information. The emotion acquisition module is used to obtain users' emotion-related data; The control unit (101) is electrically connected to the heating element (202) and the emotion acquisition module (103), respectively. The control unit is configured to determine the target capsule cavity (201) based on emotion data and control the heating element (202) of the cavity to start, so that the aroma is released from the aroma outlet (301) through the corresponding flow guide structure.

2. The system according to claim 1, characterized in that, The flow guiding structure includes: The lower surface of the top cover (300) is provided with annular sealing grooves (303) in the same number as the capsule receiving cavity (201), and each annular sealing groove (303) is aligned with the top opening of the corresponding capsule receiving cavity (201); Each annular sealing groove (303) is embedded with a silicone sealing ring (304) for forming an airtight connection with the top of the capsule receiving cavity (201); The top cover (300) has an air guide channel (302) inside that is connected to the annular sealing groove (303). All the air guide channels (302) converge in the central area of ​​the top cover (300) to form a mixing chamber (305) and are connected to the fragrance outlet (301).

3. The system according to claim 2, characterized in that, The air guide channel (302) is an inclined air channel that extends obliquely upward from the annular sealing groove (303) toward the center.

4. The system according to claim 1, characterized in that, The marking part (404) is a color ring set at the bottom of the capsule, and the color of the color ring corresponds one-to-one with the fragrance inside the capsule.

5. The system according to claim 4, characterized in that, The heating elements (202) at the bottom of the plurality of capsule cavities (201) are configured with fixed different temperature values, and the temperature values ​​are arranged in a preset order along the circumference, and each capsule cavity (201) has a color mark corresponding to the temperature value.

6. The system according to claim 4, characterized in that, The physical anti-mistake structure includes a positioning protrusion (203) set at the bottom of each capsule receiving cavity (201) and a corresponding positioning groove (403) set at the bottom of each capsule; the positioning protrusions (203) of different capsule receiving cavities (201) have different shapes and match the shapes of the positioning grooves (403) at the bottom of the corresponding capsules one by one.

7. The system according to claim 6, characterized in that, The shapes of the positioning protrusions (203) and positioning grooves (403) are selected from one of triangles, squares, pentagons, hexagons, circles, ellipses, stars, and hearts, and the shapes of the positioning protrusions (203) of the eight capsule receiving cavities (201) are different from each other.

8. The system according to claim 1, characterized in that, The identification part (406) is an NFC tag set at the bottom of the capsule. Each capsule cavity (201) has an NFC read / write module (205) at the bottom, which is used to read the fragrance information and recommended heating parameters stored in the NFC tag.

9. The system according to claim 8, characterized in that, The heating element (202) is a PTC heating element, and the control unit (101) adjusts the heating power through a PID algorithm to maintain the heating temperature within the range of ±1℃ of the temperature value set by the recommended heating parameters.

10. The system according to claim 1, characterized in that, The capsule containing cavities (201) are eight in number and are evenly distributed along the circumference; the fixed temperature values ​​of the eight heating elements (202) are 40℃, 42℃, 45℃, 48℃, 50℃, 52℃, 55℃ and 58℃ respectively.

11. The system according to claim 1, characterized in that, The control unit (101) is also configured to simultaneously activate the heating elements (202) of multiple target capsule cavities (201) when it is necessary to release the compound fragrance.

12. The system according to claim 1, characterized in that, The emotion acquisition module (103) includes a microphone array (104).

13. The system according to claim 1, characterized in that, It also includes an LED indicator (206) connected to the control unit (101), with one LED indicator (206) corresponding to each capsule cavity (201).

14. The system according to claim 1, characterized in that, The control unit (101) is also configured to record the cumulative heating time of each capsule and issue a replacement prompt when the cumulative heating time exceeds a preset threshold.

15. A fragrant oil consumable capsule, used in the intelligent fragrance system according to any one of claims 1-14, characterized in that, include: The shell (401) contains an adsorbent carrier containing essential oils; A sealing membrane (402) is used to seal the top opening of the housing (401); A foolproof groove (403) is provided at the bottom of the housing (401) and matches the positioning protrusion (203) at the bottom of the capsule receiving cavity (201); The label (404) is located at the bottom of the shell (401) and is used to label the aroma information of the capsule.

16. The sesame oil consumable capsule according to claim 15, characterized in that, The marking part (404) is a color ring, the color of which corresponds to the fixed temperature value of the capsule receiving cavity (201) to which the capsule is adapted; the shape of the anti-fooling groove (403) matches the shape of the positioning protrusion (203) at the bottom of the capsule receiving cavity (201), and the capsules corresponding to different temperatures have different shapes of anti-fooling grooves (403).

17. The sesame oil consumable capsule according to claim 15, characterized in that, The identification part (406) is an NFC tag, which stores the flavor code of the capsule and recommended heating parameters.

18. A smart fragrance control method based on emotion recognition, applied to the system described in any one of claims 1-14, characterized in that, Includes the following steps: Obtain users' emotional data; Determine the user's current emotion type based on the emotion data; Based on the current emotion type, query the fragrance type-emotion mapping database to determine the matching target fragrance type; Determine the corresponding target capsule cavity (201) based on the target fragrance; The heating element (202) at the bottom of the target capsule receiving cavity (201) is activated to heat the capsule with preset heating parameters to release aroma. The aroma is released from the aroma outlet (301) through the corresponding guide channel. Obtain user feedback emotion data after fragrance release, and optimize the fragrance-emotion mapping database based on the feedback emotion data.

19. The method according to claim 18, characterized in that, Also includes: When it is necessary to release the complex aroma, the heating elements (202) of multiple target capsule containment chambers (201) are activated simultaneously.

20. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 18-19.

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